noun. The 21st letter of the modern English alphabet.

noun. Any of the speech sounds represented by the letter u.

noun. The 21st in a series.

noun. Something shaped like the letter U.

noun. A grade that indicates an unsatisfactory status.

abbreviation. up quark

noun. An abbreviation of University College; of Upper Canada; of the Latin urbis conditæ, from the founding of the city, moaning from the first year of Rome.

An abbreviation of underproof, as applied to alcoholic liquors.

An abbreviation [l. c] in a ship's log-book, of ugly threatening weather; [l. c] of uncle; of Unionist.

noun. An abbreviation of Uncle Sam

noun. of United Service

noun. [lowercase or cap.] of the Latin ut supra, as above.

noun. An abbreviation of United Brethren; of United Brethren in Christ.

noun. An abbreviation of Italian una corda, on one string.

noun. An abbreviation of United Kingdom (of Great Britain and Ireland).

The twenty-first character and fifth vowel-sign in the English alphabet.

As a symbol: The chemical symbol of uranium.

In quaternions, an operational sign which, prefixed to the symbol of a quaternion, denotes the versor of that quaternion.

In the theory of heat, a symbol used to denote the energy, or the sum of the increment of heat and the heat consumed.

[lowercase] In the calculus, the symbol of a function.

[lowercase] In hydrodynamics, used with v and w to denote the rectangular components of the velocity.

noun. An abbreviation of United Presbyterian.

noun. An abbreviation of United States (of America).

the twenty-first letter of the English alphabet, is a cursive form of the letter V, with which it was formerly used interchangeably, both letters being then used both as vowels and consonants. U and V are now, however, differentiated, U being used only as a vowel or semivowel, and V only as a consonant. The true primary vowel sound of U, in Anglo-Saxon, was the sound which it still retains in most of the languages of Europe, that of long oo, as in tool, and short oo, as in wood, answering to the French ou in tour. Etymologically U is most closely related to o, y (vowel), w, and v; as in two, duet, dyad, twice; top, tuft; sop, sup; auspice, aviary. See v, also o and y.

noun. The twenty-first letter of the basic modern Latin alphabet.

noun. symbol for unified atomic mass unit

noun. Used in the International Phonetic Alphabet and in several romanization systems of non-Latin scripts to represent a close back rounded vowel (IPA: /u/).

noun. The twenty-first letter of the English alphabet, called u and written in the Latin script.

noun. The name of the Latin script letter U/u.

noun. A thing in the shape of the letter U

pronoun. you (in text messaging and internet conversations)

abbreviation. Underwater.

adjective. (chiefly British) of or appropriate to the upper classes especially in language use

noun. a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

noun. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

noun. the 21st letter of the Roman alphabet

"Ai has update ur profile..u r now a Man seeking a Penguin and ur interestz r nude karaoke and glueing urself to stuff look, u alreddy haz responses!"

upper-class  

u-boat  u-bolt  u-turn  

alphabetic character  base  letter  letter of the alphabet  nucleotide  

Baku  Blue  Cebu  Chengdu  Chou  

a  bow  cut  don  fxe  

o  v  y